Operating portion of controller for electronic game machine



FIG. 1 is a front elevational view of an operating portion of controller for electronic game machine showing my new design, a dotted line showing an external form of an operating portion of controller;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof.

The broken lines are for illustrative purpose only and forms no part of the claimed design. 

The ornamental design for an operating portion of controller for electronic game machine, as shown and described. 